Attachment for horse-powers.



PATENTED v31, 1904. A. Q. GENTRY & J. A-. BURK. v ATTACHMENT FOR HORSEPOWERS.

- APPLICATION FILED JULY 11, 1903.

' N0 MODEL 3 gesscs I I lg fi rs by i 1 2 Z UNITED STATES Patented May31, 1904.

PATENT OFFICE.

ARTHUR Q. GENTRY AND JASPER A. BURK, OF MILBURN, TEXAS.

ATTACHMENT FOR HORSE-POWERS.

SPECIFICATION forming part of Letters Patent No.761,160, dated May 31,1904.

Application filed al; 11, 1903. Serial No. 165,161. (No model.)

To all whom it may concern.-

Be it known that we, ARTHUR Q. GENTRY and JASPER A. BURK, citizens ofthe United States, residing at Milburn, in the county of McCulloch andState of Texas, have invented a new and useful Attachment forHorse-Powers and the Like, of which the following is a specification.

This invention relates to attachments for the power-transmissionapparatus employed more particularly in connection with haypresses andsimilar devices, and has for its object to provide means whereby themovement is retarded at a certain predetermined portion of the movementsto prevent the rebound of the stroke from being communicated to thehorses when horses are employed as a motive power or to the parts of anypower of whatsoever kind employed.

The device is more particularly applicable to horse-power apparatus toprevent injury to the animals during the operation of the pressingmachinery, but may be employed to advantage in connection with otherforms of machinery, and we do not, therefore, desire to be limited inthe use of the device to any specific structure or to machinery drivenby any specific motive power, but reserve the right to its use Whereverapplicable.

In the drawings illustrative of the invention,in which correspondingparts are denoted by like designating characters, Figure 1 is alongitudinal sectional elevation. Fig. 2 is a rear elevation of aportion of a power-transmitting apparatus with the improvement applied.Fig. 3 is an inverted plan view illustrating the operation of theimproved device. Fig. 4: is an enlarged perspective view of the improvedcheck-spring detached.

For the purpose of illustration the device is shown applied to animproved structure adapted to be operated by horse-power, in which- 10represents a portion of the press-box, 11 the plunger, and 12 theconnecting or operating bar or beam movably connected at one end to theplunger in the usual manner. EX- tending from the press-box are spacedbase or string timbers 13 14:, connected near their outer ends by atransverse sill 15, having extended ends, as shown. Rising from the sillmember are spaced Vertical members 16 17 connected at their upper endsby a header, preferably formed in two parts 18 19, halved upon thevertical" members and connected thereto and also to each other betweenthe vertical members by transverse bolts 20, as shown. At their lowerends the vertical members 16 17 are connected by a foot member,preferably formed in two parts 21 22 and secured, like the headermember, by transverse bolts 23, as shown. Between the head and footmembers is secured an intermediate member, preferably in two portions 2425 and secured by transverse bolts 26, similarlyto the foot and headmembers, as shown. The vertical members 16 17 will be further supportedby diagonal braces 38 39, as shown. The intermediate member 2 1 25 isnearer the header member than to the lower or base member 21 22, andmounted for rotation between these parts is a vertical drive-shaft 27,journaled, as shown, between the coupled members and extended at theupper end to provide for the reception of the sweep 28 or otherpowerapplying means. The shaft 27 also carries a gear-pinion 29 betweenthe header and intermediate members, as shown.

Journaled vertically in the header, base, and intermediate members is ashaft 30, having a crank 31 between the base and intermediate membersand a gear-wheel 32 between the header and intermediate member,intermeshing with the pinion 29, as shown. The connecting-bar 12 iscoupled by its outer end to the crank 31, as shown. and it will thus beobvious that power applied to the shaft 27 will cause the plunger 11 tobe actuated in the press-box.

In apparatus of this character at the moment of the release of theplunger at the beginning of the return stroke a rebound motion isimparted to the connecting-bar and its connected parts, caused by thesudden withdrawal of the pressure from the plunger, and this reboundfrequently results in throwing the sweep against the horses, as well asproducing violent jars and concussions in the other parts of themachinery. To check this rebound and prevent its transmission to thesweep or other parts, a check-spring 33 is arranged in the path of thecrank at its return stroke, and in engagement with which the crank movesduring the rebound period of its stroke, the spring thus absorbing thejars and concussions incident thereto and efi'ectually preventing theirtransmission to the sweep or other parts. The spring may be arrangedabove or below the crank and will preferably be so disposed that one ofthe side arms of the crank engages it, as shown. The check-spring memberis shown formed of a resilient central portion with lateral threadedends 34 35, secured in place by nuts, as shown, and of proper length tomaintain a resisting strain upon the crank for a length of timesufficient to accomplish the desired results. By this simple means theheretofore annoying and dangerous rebound action of the plunger andconnecting-bar is efliciently resisted and all the jars and concussionsabsorbed and convex surface of the base thereof disposed in the path ofsaid crank to be intermittently engaged thereby;

In testimony that we claim the foregoing as our own we have heretoaflixed our signatures in the presence of two witnesses.

- ARTHUR Q. GENTRY.

JASPER A. BURK.

Witnesses:

J. M. BEASLEY, L. B. HOLLAND.

